Door check and holder



' A. F. BRAFF ET 4;.

DOOR CHECK AND HOLQER Filed May 21, 1924 Patented Mar. 6, 1928.

D. QK v AT N OFFICE- Anni r, snare AND rnrrz orroson; or summon,Wisconsin! y noon (311E101: Aim Homes.

Application filed ma 21 Our invention relates to the art of devices forbufiing, checking and holding, sprin actuated doors and while especiallydesign" for screen doorsit maybe adapted for use owithanydoor, e 1

Our object is to producea device for this purpose which will be strong,durable, simple and of practicallyIinexpensiveconstruction, and which.may be easily and m quickly assembled and as easily attached foroperative use to any door. 1 ,Other' objects are substantiallythe sameas those of other devices developed in this art which are designed topreventthe door I from slamming when returned bylthe spring to itsclosed positionyto prevent an rebound of the door and hold it tightly cosed.

Devices for this'purpose are subjected to .very severe and strenuous useand experience has shown us they must be constructed to withstand severeshocks; Also repairs; are sometimes necessary and to this end we havesimplified the construction by forming a heavy carrying frame towhich'the opera- 25 tive parts are attached without thenecessity of rivets. 1

A clear and complete understanding of our invention will be more easilyobtained by reference to the accompanying specification, claims anddrawings, in which,

Fig. 1 shows a side elevation view of our device secured in position andholding the door closed; 1

Fig. 2 shows a side elevation view of our device in open position, thedoor engaging it to return it to a closed position in which it n willhold the door firmly closed;

Fig. 3 shows a plan view of our device;

Fig. 4 shows a longitudinal sectional view of the same; and

Fig. 5 shows a detail view of our carrying frame. e s s Referring to theaccompanying drawing the reference numeral is used to indicate the doorand 11 the door casing at the swinging edge of the door. To the doorcasing we attach a bracket preferably formed of a strip of sheet metalfolded to form parallel side walls 13 and 14, the lower ends 15 and 16being turned outwardly to engage the door casing and provided withorifices 17 and 18, respectively, to receive screws by which the bracketis secured to the door casing. The side walls 13 and 14, are

spectively which are oppositely disposed each provided with an orifice,19 and 20 re- 1924. serial No. 714,794.

and forpur oses hereinafter set forth. l he central portionof' thebrackethas a web 12 c nectin the two sidewalls 13and 14, and anor fice21 is providedtherein. 1 1 1 The movableoperating part ofour devicecomprises a pair of parallel arms 22 and 23, preferably crescent-shapedin conformation, and spaced from each other,their ends being connected"to each other by rivet pins24 and 25 respectively, andeach pin has aroller,

26 and 27 respectively, mounted thereon.

Also each arm is provided with two spaced, and preferably registeringorifices to -receive the carrying frame which will now be described. Thecarrying frameydesignated by the numeral 28,is formed,preferably, ofaheavy, strong, and-not easilyhent, wire, or itmay'be of springsteel,shaped to form. two parallel sides and an end cross piece 1 34,jretaining lugs 29 w and 30 extend- 1 fingoutwardlf from the point ofjunction,

preferably 0 the parallel sides and cross piece, the ends of this wireforming the frame turning outwardly to form the lugs 31 and 32. Thecarrying frame is of such a size, and so formed, that when the parts 1of our device areassembledi the lugs 29 21 1111 through their respectiveorifices or the arms '22 and 23, and the parallel sides of the framewill lie against the inner surfaces of theirlrespective arms, as shown.Thev lugs 31 andf32 are of suflicient length to also extend through theorifices 19 and 20 respec' tively, thus pivotally'connectingthejicarrying frame 28, and the'arms 22 and23, to the side walls 13 and14. A coil spring 33, with a hook at each end, is secured by one of itsends to the cross piece 34 of the frame, as shown its other end passingthrough the orifice 21,-and is thus secured to the web 12.

It will be observed that the relation of the cross piece 34 to the pullof the spring 33, and pivotally operating lugs 31 and 32, and the lengthand conformation of the arms 22 and 23, and the mounting of our deviceto the door casing, is such that when the door is opened it engages theroller 27 forcing the arms outwardly against the com pression' of thespring 33 until, the cross piece 34 has passed its dead center, and atthis time the roller 27, travelling on an are from the pivotal mounting,is out of en agement with the doorwhich may be reely opened. As theroller 27 assumes this outer position, and is held there against thecompression of the spring (as the cross piece has passed its dead centerin its relation to the pull of the spring) the roller 26 has been movedinwardly to the position shown in Fig. 2, so that it is in the pathofthe door as it returns to its normal closed position.

As the door returns to the closed position it contacts this roller 26and forccs'it outwardly and'whcn the cross piece 34 has again crossedits dead center the normal operation of the spring 33 forces the roller27 against the door and clamps it against the closed door thus holdingit in a tightly closed position. y a

a By our construction as thus shown and de scribed, it'will be apparentthat the strong, heavy, carrying frame provides arigid andstrongmounting for the arms and that this strength adds greatly-to thelifeof our device, for it must be borne in mind that the arms aresubjected to hard andstrenuous shocks against which they should beprotected. Again it will be noted we have provided a device which iseasily and quickly assembled by an unskilled mechanic and that the onlynecessary riveting consists in seating andsecuring the two rivets 24 and25.

In the drawings we "have illustrated only our preferred form ofconstruction and we 1 do not desire to be limited in the scope of ourconstruction, except as set forth in the Patent of the United States is:

1. A door check comprising a bracket se- 7 cured to the door casin acarrying frame pivotally secured to the bracket, a pair of crescentshaped arms rigidly secured to said the door as it closes, said trippingmeans releasing the spring actuated frame whenit is engaged by thecloslng of the door which forces the closing means against the door."

2. In door check comprisinga. housingcontaining a pivotally mountedchecking and holding means, a rlgid carrymg frame p1votally secured tothe housing and rigidly secured at a multiplicity off points, to thechecking and holding means. I p v 3. A door check compr sm-ga bracketsecured to the door casing, a pair of crescent shaped arms heldin spacedrelation by'rollers mounted intermediate said arms and adjacent theirends, a carrying frame formed of two parallel sides which fit. inside ofsaid crescent shaped arms, a connecting cross piece on said frame formedintegrally therewith, outwardly extending lugs at one end of the sidesof said frame, means on said,

frame tosecure said frame rigidly to said arms there being orifices insaid arms through which the said lugs extend and bearings in saidbracket in which said lugs are journalled, spring actuated means tocause one of the said rollers to hold the door in closed position.

ALBIN RQ R FF. FRITZ OTTOSON.

4O frame, a spring extending between the brack st and the casing frame,means on SillCl arm

